US1708411A - Sheet-handling apparatus - Google Patents

Description

S. E. DIESCHER SHEET HANDLING APPARATUS 2 Sheets-Shem.

Filed Dec. 24, 1924 INVENTOR.

ATTORNEY.

April 9, 1929.

April 1929- s. E. DIESCHER 1,708,411

SHEET HANDLING APPARATUS Filed Dec. 24, 1924 2 Sheets-Sheet 3 M311)? 3; AW.

ATTORNEY.

Patented Apr. 9 1929 UNITED STATES PATENT OFFICE.

SAMUEL E. DIESCHER, F WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO S. DIESCHER & SONS, OF PITTSBURGH, PENNSYLVANIA, A PARTNERSHIP CONSISTING OF SAM- UEL E. DIESCHER AND AUGUST 1?. DIESCHER.

SHEET-HANDLING APPARATUS,

Original application filed July 2, 1923, Serial No. 649,168. Divided and this application filed December 24,. 1924. Serial N0. 757,954.

After sheets have been reduced in a hot mill to the desired gauge they are arrangedin packs and annealed preparatory to cold rolling. On account of the temperature employed in annealing, adjacent sheets tend to adhere one to the other. If the bond between sheets is too strong to permit of the sheets being separated by hand, the packs are subjected to a hammering operation to so stretch the sheets that they will buckle sufiiciently to rupture or weaken the bond sufficiently to permit of the sheets being separated by hand.

After the sheets have been separated, they are re-piled and the pile consisting of loose sheets carried to the cold mill.

The invention described herein has for its object the provision of means whereby the several operations of hammering the packs, separating the sheets and conveying the separate sheets to the cold rolls are facilitated. The invention is hereinafter more fully described and claimed.

In the accompanying drawings forming a part of this specification, Fig. 1 is a diagrammatic view showing a relative arrangement of hammering means, cold rolls, and conveyors extending from the hammering means to the cold rolls; Figs. 2 and 3 show in elevation conveyors and cold rolls; Fig. 4 is a sectional elevation on an enlarged scale of the conveyor.

In the practice ofthe invention the packs or annealed sheets are arranged on anvils 1 arranged by preference parallel with cold rolls 2. Tracks 3 are arranged along the line of anvils for the movement of a portable hammering mechanism, indicated at A, from anvil to anvil. ln suitable proximity to the line of anvils is arranged a line of benches 4 for the openers, who remove packs or per-- tions ef packs from the anvils and who separate sheets one by one and arrange them in packs of separated sheets. The packs of loosened sheets are then placed on conveyors extending from the several benches 4 to suitable proximity to the cold rolls, as for examplc to one end of benches 5 arranged in front of the cold rolls. The sheets are fed one at a time to the cold rolls from piles resting on the laps of the operators sitting on the benches 5. In order to facilitate the removal of the packs from the conveyors to the laps turned down into position for feeding. A

suitable construction of conveyor is shown 1n FlgS. 2, 3 and 4, and consists of a belt 6 passing around spaced rollers 7 and also supported by intermediate rollers to prevent sagging of the belt. As it is desired that the packs of sheets should move automatically from the bench 4 to the bench 5, the line of rollers 7 is inclined downwardly from the bench 4 to the bench 5, as shown in Figs. 2 and 3. As it is preferred that the packs should be supported in an approximately vertical position, while moving along the conveyor, a series of supporting rollers 8 are arranged adjacent to one end of the rollers 7 and in order to prevent the packs from falling forward, these rollers are slightly inclined and the rollers 7 and belt 6 are also inclined in order to keep the packs in contact with the rollers 8, as shown in Fig.4. As the packs may acquire considerable momentum in moving along the conveyor, the belt does not extend to the end of the bench 5, and a shelf 9 in line with the belt and a back piece 10 in line with'the supporting roller 8 is interposed between the conveyor and the bench 5. As the packs pass onto the shelf and back piece, their momentum will be so reduced that the edges of the sheets will not be injured by impact when they are stopped. As the shelf and back piece are at the end of the bench, the operator on the latter can reach up and pull a pack onto his lap in position for feeding the sheets into the rolls 2.

While any suitable type or construction of hammering mechanism may be employed for hammering the packs, it is preferred to employ the mechanism described and claimed in an application filed by me July 2, 1923, Serial N 0. 649,168, new Patent No. 1,597,268, of April 24, 1926, of which application this case is a division.

I claim herein as my invention:

1. Sheet rolling mill apparatus, compris ing a stand. of finishing rolls, a table arranged in front of the rolls for supporting a pack of sheet metal in position to feed individual plates to the rolls, and a gravity conveyor leading to said table and terminating at a side thereof, said conveyor having a base for lllll supporting on their edges a series of packs of sheet metal and having a side for maintaining the packs in vertically disposed positions, whereby packs of plates may be continuously supplied to a Workman in positions for turn ing them over upon said feed table.

2. Sheet rolling mill apparatus, comprising a stand of finishing rolls, a table arranged in front of the rolls for supporting a pack of sheet metal in position to feed individual plates to the rolls, and a gravity conveyor leading to said table and terminating at a side thereof, said conveyor having a roller I base for supporting on their edges a series of packs of sheet metal and having a backwardly inclined roller side for maintaining the packs in vertically disposed positions, Whereby packs of plates may be continuously supplied to a Workman in positions for turning them over upon said feed table.

In testimony whereof, I have hereunto set my hand.

SAMUEL E. DIESCHER.

Images